252435771 has 40 divisors (see below), whose sum is σ = 456334560. Its totient is φ = 135758592.

The previous prime is 252435739. The next prime is 252435797. The reversal of 252435771 is 177534252.

It is not a de Polignac number, because 252435771 - 2⁵ = 252435739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252437771) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3456 + ... + 22733.

It is an arithmetic number, because the mean of its divisors is an integer number (11408364).

Almost surely, 2^252435771 is an apocalyptic number.

252435771 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

252435771 is a deficient number, since it is larger than the sum of its proper divisors (203898789).

252435771 is a wasteful number, since it uses less digits than its factorization.

252435771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26225 (or 26216 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 252435771 is about 15888.2274341728. The cubic root of 252435771 is about 631.9998355965. Note that the first 3 decimals are identical.

The spelling of 252435771 in words is "two hundred fifty-two million, four hundred thirty-five thousand, seven hundred seventy-one".